Multipolar ferroelectricity in the Mott regime
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866916799883247616 |
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| author | Zhao, Pengwei Yang, Jiahao Chen, Gang v. |
| author_facet | Zhao, Pengwei Yang, Jiahao Chen, Gang v. |
| contents | Ferroelectricity has been one major focus in modern fundamental research and technological application. We consider the physical origin of improper ferroelectricity in Mott insulating materials. Beyond the well-known Katsura-Nagaosa-Balatsky's inverse Dzyaloshinskii-Moriya mechanism for the noncollinearly ordered magnets, we point out the induction of the electric polarizations in the multipolar ordered Mott insulators. Using the multiflavor representation for the multipolar magnetic moments, we can show the crossover or transition from the pure inverse Dzyaloshinskii-Moriya mechanism to the pure multipolar origin for the ferroelectricity, and also incorporate the intermediate regime with the mixture of both origins. We expect our results to inspire a reexamination of ferroelectricity in the multipolar-ordered magnets. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_18942 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Multipolar ferroelectricity in the Mott regime Zhao, Pengwei Yang, Jiahao Chen, Gang v. Strongly Correlated Electrons Ferroelectricity has been one major focus in modern fundamental research and technological application. We consider the physical origin of improper ferroelectricity in Mott insulating materials. Beyond the well-known Katsura-Nagaosa-Balatsky's inverse Dzyaloshinskii-Moriya mechanism for the noncollinearly ordered magnets, we point out the induction of the electric polarizations in the multipolar ordered Mott insulators. Using the multiflavor representation for the multipolar magnetic moments, we can show the crossover or transition from the pure inverse Dzyaloshinskii-Moriya mechanism to the pure multipolar origin for the ferroelectricity, and also incorporate the intermediate regime with the mixture of both origins. We expect our results to inspire a reexamination of ferroelectricity in the multipolar-ordered magnets. |
| title | Multipolar ferroelectricity in the Mott regime |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2412.18942 |